ps3 struggled, 3ds struggled, vita struggled, now everybody seems to forget that and pretend it never happened. Wii u is having a hard time, but the system is amazing, I own one myself and it is just a better machine overall. The things you can do with the wii u you just cant with ps3, xbox or even computer.

It is up to nintendo show the unique features to the customers and make them want to buy one. If they can do that, then, wii u will be ok.